STUDY ON THE EFFECT OF RESIDUAL STRESS FIELD ON THE CRACK GROWTH RATE OF CIVIL WELDED PLATE

CHEN YangLiu; SONG Xin; BAI ChengZheng; SHENG HongWei; ZHANG JiaZhen

doi:10.16579/j.issn.1001.9669.2018.04.032

您当前的位置：

首页 >

文章列表页 >

STUDY ON THE EFFECT OF RESIDUAL STRESS FIELD ON THE CRACK GROWTH RATE OF CIVIL WELDED PLATE

更新时间：2022-09-22

- STUDY ON THE EFFECT OF RESIDUAL STRESS FIELD ON THE CRACK GROWTH RATE OF CIVIL WELDED PLATE
- Journal of Mechanical Strength Vol. 40, Issue 4, Pages: 961-965(2018)
- 作者机构：
  
  1. 哈尔滨理工大学机械动力工程学院
  2. 哈尔滨工业大学复合材料与结构研究所
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2018.04.032
  CLC：
扫描看全文
CHEN YangLiu, SONG Xin, BAI ChengZheng, et al. STUDY ON THE EFFECT OF RESIDUAL STRESS FIELD ON THE CRACK GROWTH RATE OF CIVIL WELDED PLATE. [J]. 40(4):961-965(2018)
DOI：

CHEN YangLiu, SONG Xin, BAI ChengZheng, et al. STUDY ON THE EFFECT OF RESIDUAL STRESS FIELD ON THE CRACK GROWTH RATE OF CIVIL WELDED PLATE. [J]. 40(4):961-965(2018) DOI： 10.16579/j.issn.1001.9669.2018.04.032.

摘要

为了降低大型民机焊接壁板结构疲劳裂纹扩展试验成本,缩短焊接工艺在新型飞机壁板结构上应用的研究周期,利用Abaqus有限元软件,采用预定义温度场法模拟焊接残余应力场,通过有限元模拟得到裂尖应力强度因子值,结合大型焊接壁板结构特点,利用蒙皮材料参数,采用Pairs公式,预测焊接壁板的裂纹扩展速率,并基于该模型研究不同应力比与焊接工艺下试样的疲劳裂纹扩展速率。研究发现,残余应力使有效应力比Reff增加,但随着应力比的增加,影响逐渐降低;有效应力比的变化趋势与残余应力分布趋势相同。焊接残余应力提高了焊接构件的裂纹扩展速率。通过与试验结果进行对比,验证了文中所使用方法的可行性。

Abstract

In order to reduce the cost of fatigue crack growth test and shorten the research period of welding process on new aircraft siding structure,this paper uses Abaqus finite element software to simulate welding residual stress field by using predefined temperature field method.The stress intensity factor values of crack tip are obtained by finite element simulation.Based on the structural characteristics of large welded plate,the Pairs formula was used to predict the crack propagation rate of welded plate.Based on this model,the fatigue crack growth rate of specimens with different stress ratio and welding process was studied.It is found that the effective stress ratio increases with the residual stress,but the effect decreases with the increase of the stress ratio.The trend of the effective stress ratio is similar to that of the residual stress distribution.The welding residual stress increases the crack growth rate of the welded structure.The feasibility of the proposed method is verified by comparison with the experimental results.

关键词

裂纹扩展焊接残余应力有限元分析

Keywords

Crack growthWelding residual stressFinite element analysis

references

Views

188

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

DESIGN AND SIMULATION VERIFICATION OF METRO ENERGY ABSORBED STRUCTURE BASED ON ASME RT-2 STANDARD (MT)

EXPERIMENTAL STUDY ON FRETTING FATIGUE OF 2024 ALUMINUM ALLOY UNDER ALTERNATING NORMAL LOAD (MT)

CREEP DAMAGE CONSTITUTIVE MODEL OF FE-CR-NI BASED AUSTENITIC STAINLESS STEEL

RESEARCH ON FATIGUE CRACK PROPAGATION BEHAVIOR AND LIFE PREDICTION OF WIND TURBINE GEAR

RESIDUAL LIFE PREDICTION AND CRACK GROWTH PROPERTY ANALYSIS FOR NO.17 GORGER COUPLER YOKE WITH SHALLOW SURFACE CRACK

Related Author

No data

Related Institution

Carbody Platform Department,CRRC Changchun

School of Mechanical-Electrical and Vehicle Engineering, Beijing University of Civil Engineering and Architecture

Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicles

School of Mechanical Engineering,Inner Mongolia University of Science and Technology

School of Mechanical and Power Engineering,Nanjing Tech University

⁰